- #1
huomenta12
- 3
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Hello everybody,
Here is a question that I had problems with in my textbook. I can't figure it out.Can you help me out?
A water droplet of radius 0.0018mm remains stationary in the air.If the electric field going downwards of the Earth is 150 N/C,how many excess electron charges must the water droplet have?
Relevant equations may be :
F= kQ1Q2 / r2 for force
k= 9.0 x 109 Nm2/C2
E = F / q for electric field
Electron charge = 1.6 x 10-19C
Electron Mass = 9.11 x 10-31kg
Thanks to anyone who can help!
Here is a question that I had problems with in my textbook. I can't figure it out.Can you help me out?
A water droplet of radius 0.0018mm remains stationary in the air.If the electric field going downwards of the Earth is 150 N/C,how many excess electron charges must the water droplet have?
Relevant equations may be :
F= kQ1Q2 / r2 for force
k= 9.0 x 109 Nm2/C2
E = F / q for electric field
Electron charge = 1.6 x 10-19C
Electron Mass = 9.11 x 10-31kg
Thanks to anyone who can help!